Reinforced concrete construction.



H. S. TAFT. REINFORCED CNCRETE, CONSTRUCTION.

APPLICATION FILED MAYZB, I9I4. 1,150,077.

H. S. TAFT. REINFoRcEn CONCRETE coNsTRucTloN.

APPLICATION FILED MAY 28, 1914.

Patented Aug. 17, 1915.

3 SHEETS--SHEET 2.

y H. s. TAFT.

REINFORCED CONCRETE CONSTRUCTION.

APPLICATION FILED MAY 28| 1914.

Patented Aug. 17, 1915.

` 3 SHEETS-SHEET 3.

[To allwhovmlt may concern.:

` 10- ments-1n the'constructlonof,concrete -HAmusoN s. TAFT, or SEATTLE, WASHINGTON.

v1,150,071@k j' Be it -known vthatfI, HARR'IsoN Tarn-a `citizen of the .United..States,and residentiel? Seattle, in the 'county lof King and AState'of Washington, lhave inventedinew and useful Improvements in Reinforced Concrete 'Con- .`struction,'of which. the following is a specification. My invention relates to 'reinforced concrete structures, and consists in improvefloors, roofsg--or dock decks 'and the like; In the Vdrawings heretoanneized which illustrate myr invention, Figure l f1A shows, partly fin elevation andpartly in section, a

portion of a. concrete dock fdeck; Fig. 2

l shows in. perspectiveone ofthe pyramidal cellswhich are a characteristic factor in my improved structure; Fig. 3 shows 1n planthe top of a supporting column; Fig. 4

'- shows, partly vin elevation i anda-partly in cross-section, another .form of dock deck;

Fig. 5 is a plan view ofthe top lof the pilecap'shownpiniFig. 4;l and'Figf. -is'a diaagi-and lWhich form the sub-structuref0.1"the l* 'concrete f Referring tolFig. 1, the numeral 1 refers..

gramlshowingthe mode of. assemblage of '5 theelements offmyv improved reinforced latform.

to reinforced concrete piles or columns which maybe of any desired internal construction reinforced deck-lorfpplat'form. `i Columns 1 are surmounted capitals`2 invwhich are formed end cham `ers?) and recesses 5,.the

latter surrounded by a lip or flange 4.1,. The

projects up-v reinforcement of thecolumn 1 wardly into the chamber l3.

The superstructure carried by the Icol-l ulnns 1 kconsists of a cellular system com'- posed essentially 4.of a plurality Aof, assembled, juxtaposed, hollow reinforced concrete pyramids which are integrated with a: continuous reinforced concrete Hoor slab which overlies .the bases ofthe said pyramidsI and lis incorporated withthem'both by the. modei 'of molding the concrete ofl which-'the vparts are composed and by the'interlacingof the- 4reinforcement* of another. f

'Ijhe reinforced concrete-pyramids 7' are one concrete factor into molded referablyy with transverse websS and 18 see Fig. 2) and are furnished with internal 'steel reinforcement such` as 11'.` The transverse webs also will be reinforced 1nany desired manner. The transverse webs 8 and 18 extenda little beyond the base marL IREI'NFORCED coNcnETE-coNsTRUcTroN.

Specification of Letters Patent, Appncatan med Mayas, 1914. serial-m8416611. Y g

gin of the pyramids 7. The pyramids at their apices are developed into a short trunk Patented Aug. 17, 1915.

19. In the trunk.` 19 a vertical reinforeement 12 is embedded and this reinforcement projects from the'trunk so that when one upon a column head 2, the reinforcement .12 and reinforcement 6 mutually inter# penetrate 'within the chamber 3 which 26 in the trunk 19 will, when the pyramidalcell 7 is lowered into placeyslpover the. tie beams; grout poured into thev recess 5 will then fill the slots y14` and 26and firmly incorporate the tie beams with the concrete structure When a number of the pyramidal cells 7, previously molded, havev been loweredinto place upon thefcolumnsvl, suitable 'wooden forms will then be arranged for'the rmolding of the deck slab 9 and filler beams 15." The reinforcement 11 in the sides of the pyramidal cells 7 projects diagonally upward.y out of the base margin 10, and slab reinforcement 16, 17 will be incorporated into the kdeck slab before or at the time the` latter is Qbeing molded. After the wooden molds are in place, concrete is molded thereon forming the filler beams 15 and ldeck slab -9 AThemolding of thevdeck-slab and filler beams integrates the entire structure. so -that 4 it comprises in a single substantiallylmonolithic form an assemblage of hollow pyramivdal cells with integrated adjoining baise margins and a single continuous slab or diaphragm constituting a common base or cover 'plate for the pyramidal cells. By

having the transverse webs8 'andlS-.rise a `little,above-.the` sbase" margin 10,' .the deck slab f9 when molded andintegratedwitl'i the saidtransVerse webs," leaveslspace for-the i ynicldin'gbf the y'concrete filler beams 15 which-being deeper than'the; 'deck slab 9. lafford,l elements of. stiffenng and strength.

Amykind' of flooringl may vbe laid upon the deckslab 17 such as a wooden block flooring 25.` At theouter edges of thedeck slab, z side beams 23 may be molded if desired and to these the side piling 24 may be attached. In Fig. 4 there is shown a modilcation of the above described construction .in which o f these pyramidal cells is putin place k the cellular integrated concrete structure is placed upon concrete cap blocks 22 which are molded upon pile foundation 21. In this construction the apex trunk of the pyrami dal cell 7 will be flared at 20 so as to form a dovetailed joint when grouted into the recess in the cap 22. Tie beams or tie rods 27 passing through holes prepared for them in the caps 22, perform the same function as the tie beams 13 of Fig. 1.

. `The general cellular structure diagrammatically illustrated in Fig.'6 shows how the filler beams 15 form a main latticed structure while the transverse webs 8 and 18 of the pyramidal cells 7 form subordinate latticed structures, the whole affording a high power of resistance to bending under load applied in whatever direction.

The cost of construction of the cellular flooring above described will be comparatively low because the pyramidal heads can lbe molded as separate pieces wherever convenient and when put in place will be very readily integrated with their supporting columns or caps without the employment of any timber forms. The timber formsfor the floor slab and ioor beams will require a lninimum of material and few, if any, long members, since the pyramidal cells are already assembled with their base margins so close together that very little area will have to be occupied by wooden molds. The transverse webs in the pyramidal cells have small areas between them which can be covered with light wooden floor slab `molds,'

which remain in the cell-compartments after the Hoor slab has been formed. These small areas may be also covered with suitable steel fabric forms such as are commercially known as Hy-Rib, which will remain in the cell compartments after the floor slab has been formed.

I claim:

1. Reinforced concrete structure, comprising in combination, columns, pyramidal hollow reinforced concrete cells with 4their base margins adjacent to each other and their apices joined to the columns, and filler beams of concrete molded between and incorporated with the base margins of the pyramidal cells, the whole constituting a substantially continuous cellular structure.

2. Reinforced concrete structure, comprising in combination, columns, pyramidal hollow reinforced concrete cells with their basel margins adjacent to each other and their apices joined to the columns, and filler beams of concrete molded between and incorporated with the base margins of the pyramidal cells, and reinforced concrete Hoor slabs molded on the bases of the pyramidal cells and incorporated with the filler beams.

3. Reinforced 'concrete structure, comprising in combination, columns, pyramidal hollow reinforced concrete cells with internal cross-webs, said cells arranged with their base-margins 'adjacent to each other and their apices joined to the columns, fillerbeams of concrete molded between and incorporated with the base margins of the pyramidal cells, and reinforced concrete floor slabs molded over the bases of the pyramidal cells, resting on the cross-webs and incorporated with the filler beams, the whole constituting a substantially continuous cellular structure.

4. Reinforced concrete structure; comprising in combination, columns, pyramidal hollow reinforced concrete cells arranged with their base margins adjacent' to each other and their apices joined to the columns, a reinforced concrete'floor slab'molded on the basics of the pyramidal cells, incorporated therewith and integrating the assemblage of cells, said cells slotted near their apices, and tie beams passing through said slots and secured to the cells.

5. Reinforced concrete structure, comprising in combination, columns having end chambers and reinforcement projecting from the shafts of the columns into said chambers, pyramidal hollow reinforced concrete cells to rest on the columns and provided with reinforcement projecting from their apices, the projecting reinforcements of the columns and cells mutually interpenetrating in said column chambers, and a cementitious filling in said chambers, integrating the columns and cells; the base margins of the cells adjacent to and incorpo` rated with each other, and a reinforced concrete floor slab covering the assemblage of pyramidal cells and integrating them into a substantially continuous structure.

Signed by me at Seattle, Washington, this twenty first day ofMay 1914.

HARRISON S. TAFT.

lVi-tnesses:

H. F. TUCKER, JAMES Donne. 

